[Coverity] Pass AutocompleteMatch to predicate as const-ref

chrome/browser/autocomplete/shortcuts_provider.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/autocomplete/shortcuts_provider.h"
 
 #include <algorithm>
 #include <cmath>
 #include <map>
 #include <vector>
@@ skipping 22 matching lines @@
 using shortcuts_provider::Shortcut;
 using shortcuts_provider::ShortcutMap;
 
 namespace {
 
 class RemoveMatchPredicate {
  public:
   explicit RemoveMatchPredicate(const std::set<GURL>& urls)
       : urls_(urls) {
   }
-  bool operator()(AutocompleteMatch match) {
+  bool operator()(const AutocompleteMatch& match) {
     return urls_.find(match.destination_url) != urls_.end();
   }
  private:
   // Lifetime of the object is less than the lifetime of passed |urls|, so
   // it is safe to store reference.
   const std::set<GURL>& urls_;
 };
 
 }  // namespace
 
@@ skipping 249 matching lines @@
 
 void ShortcutsProvider::set_shortcuts_backend(
     history::ShortcutsBackend* shortcuts_backend) {
   DCHECK(shortcuts_backend);
   shortcuts_backend_ = shortcuts_backend;
   shortcuts_backend_->AddObserver(this);
   if (shortcuts_backend_->initialized())
     initialized_ = true;
 }